Rockstar
Toyota aims to redefine environment-friendly car designs with its 1/X concept that has the same amount of space as a Prius with 1/3 of the weight while operating at a double fuel efficiency.

The design's 1/X name is derived from the reduced weight, emissions and fuel consumption compared to similar vehicles in its class. Being so lightweight is attributed to the choice of a carbon fiber reinforced plastic frame that is very strong yet considerably lighter than conventional framing systems. The car's breakthrough design allows it to travel on a four-gallon tank of fuel for over 600 miles . Very impressive!